Phase separation in doped Mott insulators
arXiv:1407.0368 · doi:10.1103/PhysRevX.5.021007
Abstract
Motivated by the commonplace observation of Mott insulators away from integer filling, we construct a simple thermodynamic argument for phase separation in first-order doping-driven Mott transitions. We show how to compute the critical dopings required to drive the Mott transition using electronic structure calculations for the titanate family of perovskites, finding good agreement with experiment. The theory predicts the transition is percolative and should exhibit Coulomb frustration.
Updated acknowledgements
References in corpus (10)
- Mott transition in VO2 revealed by infrared spectroscopy and nano-imaging
- Momentum space anisotropy and pseudogaps: a comparative cluster dynamical mean field analysis of the doping-driven metal-insulator transition in the two dimensional Hubbard model
- Orbital Physics in the Perovskite Ti Oxides
- Visualizing the emergence of the pseudogap state and the evolution to superconductivity in a lightly hole-doped Mott insulator
- Finite doping signatures of the Mott transition in the two-dimensional Hubbard model
- First order Mott transition at zero temperature in two dimensions: Variational plaquette study
- Dielectric properties and dynamical conductivity of LaTiO3: From dc to optical frequencies
- The Anderson-Mott transition induced by hole-doping in Nd1-xTiO3
- Doping-driven Mott transition in La_{1-x}Sr_xTiO_3 via simultaneous electron and hole doping of t2g subbands
- Universality classes for Coulomb frustrated phase separation